Two input clocks (K and K#) for address and control
registering at rising edges only.
Two output clocks (C and C#) for data output control.
Two echo clocks (CQ and CQ#) that are delivered
simultaneously with data.
+1.8V core power supply and 1.5, 1.8V VDDQ, used
with 0.75, 0.9V VREF.